1 /*=========================================================================
4 Module: $RCSfile: TestCopyDicom.cxx,v $
6 Date: $Date: 2004/11/25 10:24:33 $
7 Version: $Revision: 1.22 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
18 #include "gdcmHeader.h"
20 #include "gdcmDocument.h"
21 #include "gdcmValEntry.h"
22 #include "gdcmBinEntry.h"
25 #include "gdcmDataImages.h"
28 #include <unistd.h> //for access, unlink
30 #include <io.h> //for _access on Win32
33 // return true if the file exists
34 bool FileExists(const char* filename)
37 # define access _access
42 if ( access(filename, R_OK) != 0 )
52 bool RemoveFile(const char* source)
55 #define _unlink unlink
57 return unlink(source) != 0 ? false : true;
60 int CopyDicom(std::string const & filename,
61 std::string const & output )
63 std::cout << " Testing: " << filename << std::endl;
64 if( FileExists( output.c_str() ) )
66 // std::cerr << "Don't try to cheat, I am removing the file anyway" << std::endl;
67 if( !RemoveFile( output.c_str() ) )
69 std::cout << "Ouch, the file exist, but I cannot remove it" << std::endl;
74 //////////////// Step 1:
76 gdcm::Header *originalH = new gdcm::Header( filename );
77 gdcm::Header *copyH = new gdcm::Header( output );
79 //First of all copy the header field by field
81 // Warning :Accessor gdcmElementSet::GetEntry() should not exist
82 // It was commented out by Mathieu, that was a *good* idea
83 // (the user does NOT have to know the way we implemented the Header !)
84 // Waiting for a 'clean' solution, I keep the method ...JPRx
87 //////////////// Step 2:
89 originalH->Initialize();
90 gdcm::DocEntry* d=originalH->GetNextEntry();
94 if ( gdcm::BinEntry* b = dynamic_cast<gdcm::BinEntry*>(d) )
96 copyH->ReplaceOrCreateByNumber(
103 else if ( gdcm::ValEntry* v = dynamic_cast<gdcm::ValEntry*>(d) )
105 copyH->ReplaceOrCreateByNumber(
113 // We skip pb of SQ recursive exploration
114 //std::cout << "Skipped Sequence "
115 // << "------------- " << d->GetVR() << " "<< std::hex
116 // << d->GetGroup() << " " << d->GetElement()
120 d=originalH->GetNextEntry();
123 gdcm::File *original = new gdcm::File( originalH );
124 gdcm::File *copy = new gdcm::File( copyH );
126 size_t dataSize = original->GetImageDataSize();
127 uint8_t* imageData = original->GetImageData();
129 // Useless to set the image datas, because it's already made when
130 // copying the corresponding BinEntry that contains the pixel datas
131 copy->SetImageData(imageData, dataSize);
132 // copy->GetImageData();
133 // original->GetHeader()->SetImageDataSize(dataSize);
135 //////////////// Step 3:
137 copy->SetWriteModeToRGB();
138 if( !copy->WriteDcmExplVR(output) )
140 std::cout << " Failed" << std::endl
141 << " " << output << " not written" << std::endl;
154 //////////////// Step 4:
156 copy = new gdcm::File( output );
158 //Is the file written still gdcm parsable ?
159 if ( !copy->GetHeader()->IsReadable() )
161 std::cout << " Failed" << std::endl
162 << " " << output << " not readable" << std::endl;
170 //////////////// Step 5:
172 size_t dataSizeWritten = copy->GetImageDataSize();
173 uint8_t* imageDataWritten = copy->GetImageData();
175 if (dataSize != dataSizeWritten)
177 std::cout << " Failed" << std::endl
178 << " Pixel areas lengths differ: "
179 << dataSize << " # " << dataSizeWritten << std::endl;
188 if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
191 std::cout << " Failed" << std::endl
192 << " Pixel differ (as expanded in memory)." << std::endl;
200 std::cout << "OK." << std::endl ;
209 // Here we load a gdcmFile and then try to create from scratch a copy of it,
210 // copying field by field the dicom image
212 int TestCopyDicom(int argc, char* argv[])
216 // The test is specified a specific filename, use it instead of looping
218 const std::string input = argv[1];
219 const std::string reference = argv[2];
220 return CopyDicom( input, reference );
222 else if ( argc > 3 || argc == 2 )
224 std::cout << " Usage: " << argv[0]
225 << " (no arguments needed)." << std::endl;
226 std::cout << "or Usage: " << argv[0]
227 << " filename.dcm reference.dcm" << std::endl;
232 std::cout << " Description (Test::TestCopyDicom): "
234 std::cout << " For all images in gdcmData (and not blacklisted in "
235 "Test/CMakeLists.txt)"
237 std::cout << " apply the following to each filename.xxx: "
239 std::cout << " step 1: parse the image (as gdcmHeader) and call"
240 << " IsReadable(). After that, call GetImageData() and "
241 << "GetImageDataSize() "
243 std::cout << " step 2: create a copy of the readed file and the new"
244 << " pixel datas are set to the copy"
246 std::cout << " step 3: write the copy of the image"
248 std::cout << " step 4: read the copy and call IsReadable()"
250 std::cout << " step 5: compare (in memory with memcmp) that the two "
251 << "images " << std::endl
252 << " match (as expanded by gdcm)." << std::endl;
253 std::cout << std::endl;
256 int retVal = 0; //by default this is an error
257 while( gdcmDataImages[i] != 0 )
259 std::string filename = GDCM_DATA_ROOT;
260 filename += "/"; //doh!
261 filename += gdcmDataImages[i];
263 std::string output = "output.dcm";
265 if( CopyDicom( filename, output ) != 0 )